ATSAML22N17A-AUT - 32MHz M0+ 128KB Flash MCU | Microchip
부품 번호: ATSAML22N17A-AUT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $5.82 | $5.82 |
| 10 | $5.24 | $52.40 |
| 100 | $4.66 | $466.00 |
| 500 | $4.2 | $2,100.00 |
| 1,000 | $3.75 | $3,750.00 |
ATSAML22N17A-AUT 개요
An ultra-low-power microcontroller (MCU) is a class of embedded controller that integrates a CPU core, memory, and peripherals while optimizing every operating mode for minimum energy consumption. Within the semiconductor taxonomy, an MCU belongs to microcontrollers -> integrated circuits -> semiconductors. The SAM L22 family specifically targets battery-powered metering, medical, and IoT applications where the segment LCD driver eliminates the cost and current drain of an external display controller.
Key features of the ATSAML22N17A-AUT include 39 uA/MHz active current running CoreMark, a deep-sleep backup mode drawing only 490 nA with RTC retention, a 12-bit ADC, multiple SERCOM interfaces, a full-speed USB device, and a hardware segmented LCD controller with integrated charge pump. The device also provides a 32 kHz RTC, multiple timers, and an event system for low-power peripheral signaling without CPU intervention.
The architecture combines an ARM Cortex-M0+ core with single-cycle I/O access, a dedicated LCD segment driver peripheral, and a sophisticated power management unit featuring eight distinct sleep modes. The integrated charge pump allows direct biasing of 3V or 5V LCD glass from a single Li-ion cell, simplifying meter and appliance front-panel designs.
Typical applications include electricity meters, water/gas meters with LCD readouts, medical monitoring devices, industrial sensor nodes, and battery-powered IoT terminals. The combination of segment LCD, USB, and sub-microamp backup current makes the part especially well-suited to portable metering and wearable health devices.
When designing with this part, ensure that decoupling capacitance is placed within 5 mm of each VDD pin pair and that the segment LCD bias network follows the reference schematic in the datasheet. The AUT suffix indicates tape-and-reel packaging for high-volume assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-ready view of the ATSAML22N17A-AUT and its pin-compatible peers.
드롭인 대체품: ATSAML22N17A-AUT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAML22N17A-AUT (동일 폼 팩터 및 풋프린트) — 차이점: RoHS Status, ADC, Core, Maximum Clock Frequency, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAML22N18A-AUT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAML22N16A-AUT
✅ 드롭인✓ 재고 있음
$2.85 / 개
데이터시트 보기 →ATSAML22J17A-AUT
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4LS2CA-AU
✅ 드롭인✓ 재고 있음
$3.95 / 개
데이터시트 보기 →ATSAM4LS2CA-AUR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAML22N17A-AUT 최대 정격 & 전기적 특성
| Core | ARM Cortex-M0+ 32-bit |
| Max CPU Speed | 32 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Supply Voltage (VDD) | 1.6 V to 3.6 V |
| Active Current (CoreMark) | 39 uA/MHz |
| Backup Mode Current (RTC retained) | 490 nA |
| 동작 온도 | -40C to +85C |
| 패키지 | 100-pin TQFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| LCD Segments | Up to 320 |
| ADC | 12-bit |
| USB | Full-Speed USB Device |
| RoHS 상태 | Compliant |
ATSAML22N17A-AUT 핀 구성
| 핀 1 | PA00 — GPIO / SERCOM1 PAD0 |
| 핀 2 | PA01 — GPIO / SERCOM1 PAD1 |
| 핀 3 | PA02 — GPIO / AIN0 (ADC input) |
| 핀 4 | PA03 — GPIO / AIN1 (ADC input) |
| 핀 5 | GND — Ground |
| 핀 6 | VDD — Digital supply 1.6-3.6 V |
| 핀 7 | PA04 — GPIO / AIN2 / VREF |
| 핀 8 | PA05 — GPIO / AIN3 |
| 핀 9 | PA06 — GPIO / AIN4 |
| 핀 10 | PA07 — GPIO / AIN5 |
| 핀 11 | VDDIO — I/O supply |
| 핀 12 | GND — Ground |
| 핀 13 | PA08 — GPIO / SERCOM0 PAD0 / I2S |
| 핀 14 | PA09 — GPIO / SERCOM0 PAD1 / I2S |
| 핀 15 | PA10 — GPIO / SERCOM2 PAD2 |
| 핀 16 | PA11 — GPIO / SERCOM2 PAD3 |
| 핀 17 | PA12 — GPIO / SERCOM4 PAD0 / I2S |
| 핀 18 | PA13 — GPIO / SERCOM4 PAD1 / I2S |
| 핀 19 | PA14 — GPIO / SERCOM2 PAD0 |
| 핀 20 | PA15 — GPIO / SERCOM2 PAD1 |
| 핀 21 | PA16 — GPIO / SERCOM1 PAD2 / I2S |
| 핀 22 | PA17 — GPIO / SERCOM1 PAD3 / I2S |
| 핀 23 | PA18 — GPIO / SERCOM3 PAD2 |
| 핀 24 | PA19 — GPIO / SERCOM3 PAD3 |
| 핀 25 | PA20 — GPIO / SERCOM5 PAD2 |
| 핀 26 | PA21 — GPIO / SERCOM5 PAD3 |
| 핀 27 | PA22 — GPIO / SERCOM3 PAD0 |
| 핀 28 | PA23 — GPIO / SERCOM3 PAD1 |
| 핀 29 | PA24 — GPIO / SERCOM5 PAD0 / USB D- |
| 핀 30 | PA25 — GPIO / SERCOM5 PAD1 / USB D+ |
| 핀 31 | GND — Ground |
| 핀 32 | VDD — Digital supply 1.6-3.6 V |
| 핀 33 | PA26 — GPIO |
| 핀 34 | PA27 — GPIO |
| 핀 35 | PA28 — GPIO / SEG53 LCD |
| 핀 36 | PA29 — GPIO / SEG52 LCD |
| 핀 37 | PA30 — GPIO / SWCLK (programming) |
| 핀 38 | PA31 — GPIO / SWDIO (programming) |
| 핀 39 | PB00 — GPIO / SEG51 LCD |
| 핀 40 | PB01 — GPIO / SEG50 LCD |
| 핀 41 | PB02 — GPIO / SERCOM5 PAD0 |
| 핀 42 | PB03 — GPIO / SERCOM5 PAD1 |
| 핀 43 | PB04 — GPIO / SEG49 LCD |
| 핀 44 | PB05 — GPIO / SEG48 LCD |
| 핀 45 | PB06 — GPIO / SEG47 LCD |
| 핀 46 | PB07 — GPIO / SEG46 LCD |
| 핀 47 | PB08 — GPIO / SEG45 LCD / I2S |
| 핀 48 | PB09 — GPIO / SEG44 LCD / I2S |
| 핀 49 | PB10 — GPIO / SEG43 LCD |
| 핀 50 | PB11 — GPIO / SEG42 LCD |
| 핀 51 | PB12 — GPIO / SEG41 LCD |
| 핀 52 | PB13 — GPIO / SEG40 LCD |
| 핀 53 | PB14 — GPIO / SEG39 LCD |
| 핀 54 | PB15 — GPIO / SEG38 LCD |
| 핀 55 | PC00 — GPIO / SEG37 LCD |
| 핀 56 | PC01 — GPIO / SEG36 LCD |
| 핀 57 | PC02 — GPIO / SEG35 LCD |
| 핀 58 | PC03 — GPIO / SEG34 LCD |
| 핀 59 | PC04 — GPIO / SEG33 LCD |
| 핀 60 | PC05 — GPIO / SEG32 LCD |
| 핀 61 | PC06 — GPIO / SEG31 LCD |
| 핀 62 | PC07 — GPIO / SEG30 LCD |
| 핀 63 | VDDIO — I/O supply |
| 핀 64 | GND — Ground |
| 핀 65 | PC08 — GPIO / SEG29 LCD |
| 핀 66 | PC09 — GPIO / SEG28 LCD |
| 핀 67 | PC10 — GPIO / SEG27 LCD / COM5 |
| 핀 68 | PC11 — GPIO / SEG26 LCD / COM4 |
| 핀 69 | PC12 — GPIO / SEG25 LCD / COM3 |
| 핀 70 | PC13 — GPIO / SEG24 LCD / COM2 |
| 핀 71 | PC14 — GPIO / SEG23 LCD / COM1 |
| 핀 72 | PC15 — GPIO / SEG22 LCD / COM0 |
| 핀 73 | PC16 — GPIO / SEG21 LCD |
| 핀 74 | PC17 — GPIO / SEG20 LCD |
| 핀 75 | PC18 — GPIO / SEG19 LCD |
| 핀 76 | PC19 — GPIO / SEG18 LCD |
| 핀 77 | PC20 — GPIO / SEG17 LCD |
| 핀 78 | PC21 — GPIO / SEG16 LCD |
| 핀 79 | PC22 — GPIO / SEG15 LCD |
| 핀 80 | PC23 — GPIO / SEG14 LCD |
| 핀 81 | PC24 — GPIO / SEG13 LCD |
| 핀 82 | PC25 — GPIO / SEG12 LCD |
| 핀 83 | PC26 — GPIO / SEG11 LCD |
| 핀 84 | PC27 — GPIO / SEG10 LCD |
| 핀 85 | PC28 — GPIO / SEG9 LCD |
| 핀 86 | PC29 — GPIO / SEG8 LCD |
| 핀 87 | PC30 — GPIO / SEG7 LCD |
| 핀 88 | PC31 — GPIO / SEG6 LCD |
| 핀 89 | PD00 — GPIO / SEG5 LCD |
| 핀 90 | PD01 — GPIO / SEG4 LCD |
| 핀 91 | PD02 — GPIO / SEG3 LCD |
| 핀 92 | PD03 — GPIO / SEG2 LCD |
| 핀 93 | PD04 — GPIO / SEG1 LCD |
| 핀 94 | PD05 — GPIO / SEG0 LCD |
| 핀 95 | PD06 — GPIO |
| 핀 96 | PD07 — GPIO |
| 핀 97 | VDD — Digital supply 1.6-3.6 V |
| 핀 98 | GND — Ground |
| 핀 99 | VDDCORE — Internal core supply (decouple 1uF) |
| 핀 100 | RESET — Reset input, active low |
일반적인 애플리케이션
ATSAML22N17A-AUT 적합 용도: 6 애플리케이션s: Electricity Meter with Segment LCD, Water and Gas Meter with LCD Display, Battery-Powered Medical Monitor, Industrial Sensor Node with USB Diagnostics, Wearable Health and Fitness Device, IoT Edge Node with LCD Status Display.
Electricity Meter with Segment LCD
The ATSAML22N17A-AUT is purpose-built for single-phase and three-phase electricity meters where the integrated segment LCD controller drives up to 320 segments for kWh, voltage, current, and tariff readouts. With 39 uA/MHz active current and 490 nA backup, it sustains 10+ years of battery or capacitor-backed operation. The Cortex-M0+ core runs metering algorithms and the integrated 12-bit ADC samples voltage and current channels. The same 100-pin TQFP footprint supports family migration to ATSAML22N18A-AUT for added Flash headroom.
추천
Water and Gas Meter with LCD Display
The ATSAML22N17A-AUT drives a 4- or 8-compartment mechanical register through its segment LCD peripheral and counts pulses from a reed switch or Hall sensor via a GPIO interrupt. The 490 nA backup mode with RTC retains time and consumption data during primary cell replacement. 128 KB Flash fits wireless M-Bus or LoRaWAN stacks when paired with an external transceiver. The 100-pin TQFP provides ample GPIO for tamper switches, optical interfaces, and valve control outputs.
추천
Battery-Powered Medical Monitor
The ATSAML22N17A-AUT suits portable medical devices such as glucose meters, pulse oximeters, and body temperature monitors where battery life and a clear numeric LCD display are essential. Its 12-bit ADC captures sensor data, the segment LCD shows measurement results without a separate driver IC, and the 1.6-3.6 V range accepts direct Li-ion or 2x AA cells. Hardware crypto on the J-variant or AES on the L22J enables secure patient data storage where required.
추천
Industrial Sensor Node with USB Diagnostics
The ATSAML22N17A-AUT integrates a full-speed USB device that engineers can use for firmware update and diagnostic logging without an external bridge IC. In industrial 4-20 mA sensor heads, the 12-bit ADC and multiple SERCOM channels (I2C/SPI/UART) connect to MEMS sensors and isolated transceivers. The wide -40C to +85C operating range supports factory-floor deployment, and the 100-pin TQFP provides a rugged leaded package for harsh environments.
추천
Wearable Health and Fitness Device
Wearable step counters, heart-rate monitors, and thermometer watches leverage the ATSAML22N17A-AUT for sub-microamp standby between sensor samples and an integrated segment LCD for time and metric display. The 32 MHz Cortex-M0+ executes BLE stack stubs and HRM algorithms within 39 uA/MHz, while 490 nA backup mode keeps the RTC alive overnight. The 100-pin TQFP package suits small form-factor wearable PCBs where exposed lead reliability matters.
추천
IoT Edge Node with LCD Status Display
IoT edge devices such as smart thermostats, room controllers, and HVAC user interfaces benefit from the ATSAML22N17A-AUT's segment LCD up to 320 segments and multiple SERCOM channels for sensor and radio connectivity. The Cortex-M0+ runs FreeRTOS or ASF firmware, the 128 KB Flash holds TCP/IP and MQTT stacks, and the 1.6-3.6 V range accepts 3.3 V system rails directly. The 100-pin TQFP is convenient for hand-soldered prototypes and production assemblies alike.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATSAML22N17A-AUT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAML22N18A-AUT | ATSAML22N16A-AUT | ATSAML22J17A-AUT | ATSAM4LS2CA-AU |
|---|---|---|---|---|---|
| Package | TQFP-100 (14x14) | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M4F |
| Max Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 48 MHz |
| Flash | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 32 KB | 8 KB | 16 KB | 32 KB |
| LCD Segments | 320 | 320 | 320 | 320 | None |
| Active Current | 39 uA/MHz | 39 uA/MHz | 39 uA/MHz | 39 uA/MHz | 90 uA/MHz |
| Backup Current | 490 nA | 490 nA | 490 nA | 490 nA | 1500 nA |
주요 차별점
- Integrated segment LCD controller with 320 segments (vs ATSAM4LS2CA-AU)
- Sub-500 nA backup mode with RTC retention (vs ATSAM4LS2CA-AU)
- Scalable Flash footprint across the SAM L22 family (vs ATSAML22N18A-AUT)
설계 노트
Place a 1uF X7R ceramic decoupling capacitor within 5 mm of the VDDCORE pin (pin 99) and a 100 nF X7R within 5 mm of each VDD/VDDIO pair (pins 6, 11, 32, 63, 97). The VDDCORE pin is internally regulated and must not be driven externally. Use a star-ground topology connecting all GND pins to a single copper pour under the TQFP thermal pad to avoid ground bounce during LCD charge-pump switching.
The segment LCD charge pump uses external VLCD and HPM pins; consult the reference schematic in the SAM L22 datasheet section 'LCD Controller'. Using incorrect reservoir capacitor values (< 1uF) on HPM causes ghosting segments. Do not enable the LCD controller before configuring the GPIO mux for SLCD_COM and SLCD_SEG functions, otherwise the segment pins default to GPIO and can drive the LCD glass incorrectly.
Route the USB DP and DM pair (PA24, PA25) as a 90-ohm differential pair with length matching within 2 mm. Place the 27 ohm series damping resistors close to the MCU side and keep the pair away from switching power traces. For PCB layout, fan out the 100-pin TQFP on both sides with 0.2 mm trace width minimum to reach inner escape layers; the 14x14 mm package offers generous routing channels for 4-layer stack-ups.
규정 준수 정보
RoHS and REACH compliance per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified (use ATSAML22N17A-AUT automotive variant for vehicle applications if available).
